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https://issues.apache.org/jira/browse/HIVE-15002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15586331#comment-15586331
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Zoltan Haindrich commented on HIVE-15002:
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[~taoli-hwx]
1: i've attached a stacktrace of an affected proccess, I think this caused it.
2: there were two usages of that variable...and the other one was inside the
'catch' block...if we get there it doesnt really matter to re-get the
operationManager - and this way I didn't left any method invocations outside:
in the "non-protected" zone.
> HiveSessionImpl#executeStatementInternal may leave locks in an inconsistent
> state
> ---------------------------------------------------------------------------------
>
> Key: HIVE-15002
> URL: https://issues.apache.org/jira/browse/HIVE-15002
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Attachments: HIVE-15002.1.patch, stacktrace.txt
>
>
> {{TestEmbeddedThriftBinaryCLIService}} have showed me this behaviour.
> Thrift service may hang because of this issue.
> {{TestEmbeddedThriftBinaryCLIService}} can reproduce this problem with a very
> bad probability...but I was able to
> Its not able to aquire the semaphore; because most probably because an
> earlier command have produced an SQLException in the unprotected parts.
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